Fix and unskip cpp extension tests for ARM (#83115)

Pull Request resolved: https://github.com/pytorch/pytorch/pull/83115
Approved by: https://github.com/albanD

test/test_dispatch.py

@@ -1,13 +1,12 @@
 # Owner(s): ["module: dispatch"]
 
 import torch._C as C
-from torch.testing._internal.common_utils import TestCase, run_tests, IS_ARM64
+from torch.testing._internal.common_utils import TestCase, run_tests
 from torch._python_dispatcher import PythonDispatcher
 
 from collections import namedtuple
 import itertools
 import os
-import unittest
 import re
 import torch.utils.cpp_extension
 
@@ -768,7 +767,6 @@ CompositeImplicitAutograd[alias] (inactive): fn1 :: (Tensor _0) -> Tensor _0 [ b
             msg=f"Expect zero dangling impls, but found: {dangling_impls}"
         )
 
-    @unittest.skipIf(IS_ARM64, "Not working on arm")
     def test_find_dangling_impls_ext(self):
         extension_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'cpp_extensions', 'dangling_impl_extension.cpp')
         module = torch.utils.cpp_extension.load(

test/test_utils.py

@@ -19,7 +19,7 @@ from torch.utils.checkpoint import checkpoint, checkpoint_sequential
 import torch.utils.cpp_extension
 from torch.autograd._functions.utils import check_onnx_broadcast
 from torch.onnx.symbolic_opset9 import _prepare_onnx_paddings
-from torch.testing._internal.common_utils import load_tests, IS_SANDCASTLE, IS_WINDOWS, IS_ARM64
+from torch.testing._internal.common_utils import load_tests, IS_SANDCASTLE, IS_WINDOWS
 
 # load_tests from torch.testing._internal.common_utils is used to automatically filter tests for
 # sharding on sandcastle. This line silences flake warnings
@@ -682,7 +682,6 @@ class TestAssert(TestCase):
 
 @unittest.skipIf(IS_SANDCASTLE, "cpp_extension is OSS only")
 class TestStandaloneCPPJIT(TestCase):
-    @unittest.skipIf(IS_ARM64, "Not working on arm")
     def test_load_standalone(self):
         build_dir = tempfile.mkdtemp()
         try:

torch/utils/hipify/cuda_to_hip_mappings.py

@@ -37,6 +37,8 @@ except subprocess.CalledProcessError:
 except FileNotFoundError:
     # Do not print warning. This is okay. This file can also be imported for non-ROCm builds.
     pass
+except PermissionError:
+    pass
 
 rocm_version = (0, 0, 0)
 rocm_version_h = f"{rocm_path}/include/rocm_version.h"